The document discusses applying the distributive property to decompose numbers when multiplying. It focuses on using number bonds to break numbers apart and represent multiplication as the addition of multiple terms. Students practice decomposing numbers like 7 x 3 into (6 x 3) + (1 x 3) and representing this with number bonds and equations like (6 x 3) + (1 x 3) = 7 x 3. The document provides examples like this with 7 x 3 and 10 x 3 and has students complete problems and an exit ticket to assess their understanding.

1. Multiplication and
the Meaning
of the Factors
Module 1: Lesson 18
Apply the distributive property to decompose units.

2. Fluency Practice
Multiply by 3
(15 minutes)
Let’s get ready to do our add and subtract by 5 sprint!
Count by threes to 30 forward and backward.
Count by sixes to 30, forward and backward.
Count by fours to 40, forward and backward.

3. Application Problem
(5 minutes)
A parking structure has 10 levels. There are 3 cars
parked on each level. How A parking structure has
10 levels. There are 3 cars parked on each level.
How many cars are parked in the structure? many
cars are parked in the structure?
A parking structure has 10 levels. There
are 3 cars parked on each level. How
many cars are parked in the structure?

4. Application Problem.
(5 minutes)

5. Concept Development
(30 minutes)
Problem 1: Use number bonds to decompose numbers and apply the
distributive property.
How many threes?
The dotted line shows a way to
break apart the array. The 7 threes
are broken into…?
7 × 3

6. Concept Development
(30 minutes)
Let’s draw our number bonds.
Write the equation that shows how
to add the two parts.
Whisper to a partner the 2
multiplication sentences you used
to help you solve 7 x 3.

7. Concept Development
The number bond is another
way to show breaking apart.
This shows how we partitioned
the array and wrote the number
bond using our number
sentences.
Let’s rewrite this as the addition
of two products using my
frame.
(__ × 3) + (__ × 3) = ___ x 3
____ + ____ = ____

8. Concept Development
How does the number sentence
show the number bond?
Repeat the process with 9 x 4.
Let’s call it the break apart and
distribute strategy. The number
bond helps us see that we can
find the total by adding two
smaller parts together.

9. Concept Development
(30 minutes)
Problem 2
10 x 3
How many threes?
What are some ways we can break apart 10?
So if we were counting apples that would be 5 apples and 5
apples, 6 apples and 4 apples?
But we aren’t counting apples. What are we counting?
So that would be 6 threes and…?

10. Concept Development
(30 minutes)
10 x 3
Let’s draw our number bonds.

11. Concept Development
(30 minutes)
Write the equation that shows how
to add the two parts. Start with 6
threes and 4 threes.
Rewrite this as the addition of two
products using my frame.
(__ × 3) + (__ × 3) = ___ x 3
____ + ____ = ____

12. Problem Set (10 minutes)
You have 10 minutes to complete the problem set pages.
Debrief (10 minutes)
Let’s review your solutions for the problem set.

13. Exit Ticket
(3 minutes)
This is where you are going to show
us that you understand what we learned today!
We will learn if you are ready for the next lesson!

14. Homework
3-1 Homework
Worksheet
Is Due Tomorrow!